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Finding the Fourth Proportional to 6,481.52, 9,004.88 and 6,403.76

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Solution

The fourth proportional to 6,481.52, 9,004.88 and 6,403.76 is: 8,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.52 : 9,004.88 = 6,403.76 : x
  2. Step 2: Convert to fraction form
    6,481.52/9,004.88 = 6,403.76/x
  3. Step 3: Cross multiply
    6,481.52x = 9,004.88 × 6,403.76
  4. Step 4: Simplify right side
    6,481.52x = 57,665,090.35
  5. Step 5: Solve for x
    x = 57,665,090.35/6,481.52
  6. Step 6: Final answer
    x = 8,896.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.